Pressure pump



epe. 23 1924,

L. ALM/N PRESSURE PUMP File Feb. 9. 1923 Patented Sept. 23, i924..

LEONARD E. ALLYN, OF WEST hTYS'IC, C'JNECTICUT.

PRESSURE ruins.

sure Pumps, 4of Which the following is a 8 at the outer end thereof.

specification.

This invention relates to improvements in pressure pumps, one object of the invention heing the provision 'of a Wet and dry air pump for use With stationary or marine engines.

A further object of this invention is the provision of a device ot this character which Will dispense with the largeair pumps and therefore' give more eiiciency inthe same Working conditions by saving extra power, Weight and space, that is now necessary withthe present type of air pumps.

A still further object of this invention is the provision o novel arrangement of pump in which e steam'passing through certain nozzles crates sufficient velocity to produce a suckinghetierbin a pipe, that is, connected to a condenser E that .air auf. vapor is draw1i\through a space surrounding the nozzle and discharged through a reducedn portion adjacent the mouth of the nozzle into a discharge pipe, thus causing the steam passing through the nozzle to eren ate a velocity to remove the condensate air and vapor from the condenser and maintain a desired vacuum.

Yln the accompanying drawings:

Figure 1 is a side elevation partly in section of the main member of the present pump.

Figure 2 isa section on line 2-2 of Fig ure 1.

Referring to the drawings, the numeral 5 indicates the motive fluid admitting pipe which leads into the .supply valve casing 6 which in turn is connecte to the nozzle block chamber 7 carrying the nozzle block This, nozzle block is threaded into the inlet end 9 of the main ejector housing 10 which is here shown as provided with the chamber 11 havingthe reduced portion l2 and the enlarged flared portion 13 at its mouth. The nozzle hlock" 8 is provided with a plurality oi? nozzle openings 14 and 15, the nozzle 14%I losing removable and concentric and the other nozzles 1.5 being similar and disposed 9, 1923.\\Seri'a1 Efo. 618,034.

thereahout, with the outlets directed 'angularly toward the center.' The outlet end of the nozzle le projects heyond and through the threaded enlargement 17 which receives the exteriorlythreaded hoss 18 orl the condensate ejector nozzle 19, into which the outlet end of the nozzle 14.- projects, terminating at a point approximately above the center ci? the inlet 21 of the condensate ejector, a pipe 22 being connected to theVA condensatev suction pipe 23. Pipe 23 is the condensate suction pipe and is connected to bottom of condenser C.

-An air and suction pipe 25 connected to the condenser enters the chamber 11 at a point opposite to pipe 23 which makes pipe 23 a suction independent from suction pip-e 25.

From the foregoirur;` description2 taheu'in connection with the drawings, it is'evident that when steam pressure is admitted through nozzle block 8 that a suction action `is created both Within and Without the nozzle'lland therefore a suction action is had to the pipe 22 and through the pipe 23.A 'througharhich the condensate is properly elevated.v anddischarges into the' enlarged Vflared portion 13 into the main discharge pipe 24 et the air and vapor remover discharge. i Thus Witirthis construction the apparatus is partiallyworking es an air removeri/.hen there -is not suilicient condensate at the hottom of the condenser' to be removed.

Steam passing through nozzle openings 15 creates sutiicient velocity to create a suc-- tion action in pipe 25 which 1s connected to the condenser, not shown, and drav'vs the air, vapor, etc., through 11 and discharges through. the reduced ortion 12 into and through the enlarged 1 ared portion 13 into the discharge pipes 24. By this means steam passing through nozzle openings 14 and 15 creates a velocity suiiicient to remove the condensate air and vapors from con.

denser and maintains a desired vacuum.

The present device could be constructed in different sizes to -meet requirements.

W'hat is claimed as new is: n a'deeicc ot this character, the com- \hination.-iv1th a valve controlled motive pressure iiuid supply, a valve chamheryan ejector chainheivhaving outlet and two inlets, a suction pipe connected to one inlet,

est

icc l a condensate pipe projecting intothe ejector housing, a nozzle .block at the junction loewy tween the nozzle ehambeiand the/ejector chambe' and provided with e concentric nozzle openin and a plurality of circumferential nozz. e openings, the latter open- 5 ings being in direct communication with the chamber 'of the ejector housing, e condensate nozzle provided with a main chamin communication with the centei` nozzle 10 -v of the block.

In testimony whereof I afix my signa- LEONARD E. ALLYN.

ture. 

